Flashing unit assembly for photographic exposure equipment



Dec. 8, 1953 I. JACOBSON ET AL 2,661,671

FLASHING UNIT ASSEMBLY FOR PHOTOGRAPHIC EXPOSURE EQUIPMENT Filed April 22, 1948 7 Sheets-Sheet l J2 Jiyrz [rad/y imam/a (W221? Bria/me Mghmfl, M002 5 Dec. 8, 1953 l. JACOBSON ET AL 2,661,571

FLASHING UNIT ASSEMBLY FOR PHOTOGRAPHIC EXPOSURE EQUIPMENT Filed April 22, 1948 7 Sheets-Sheet 2 Dec. 8, 1953 l. JACOBSON ET AL FLASHING UNIT ASSEMBLY FOR PHOTOGRAPHIC EXPOSURE EQUIPMENT 7 Sheets-Sheet 3 Filed April 22, 1948 Ft'gtm Dec. 8, 1953 l. JACOBSON ET AL FLASHING UNIT ASSEMBLY FOR PHOTOGRAPHIC EXPOSURE EQUIPMENT 7 Sheets-Sheet 4 Filed April 22, 1948 izverziora Dec. 8, 1953 I. JAcosoN ET AL 2,661,671

FLASHING UNIT ASSEMBLY FOR PHOTOGRAPHIC EXPOSURE EQUIPMENT Filed April 22, 1948 7 Sheets-Sheet 5 D 53 I. JACOBSON ET AL 2,661,671

FLASHING UNIT ASSEMBLY FOR PHOTOGRAPHIC EXPOSURE EQUIPMENT Filed April 22, 1948 7 Sheets-Sheet 6 7 Sheets-Sheet '7 l. JACOBSON ET AL FLASHING UNIT ASSEMBLY FOR PHOTOGRAPHIC EXPOSURE EQUIPMENT Fig/23 (Fly/Z4 Dec. 8, 1953 Filed April 22, 1948 Jay Patented Dec. 8, 1953 Aese 'ery rotated .aost clearl to and the remote ow mg the position of the ex- (JQDUFMBL:

View 01 the auxiliary lamp View at Fig. 20;

. lg. 20; of the electrical our L t,

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iagram of the side lighta improved battery eat or apparatus to :o'zing all types of Whether they be of 1. front-shutter type so noid f0? both operating elironizing the lamp, or of efill-"011048113 shutters with builtmy electrical 'ype of foil or Josesl ipment battery net of diffe rer it g associated incorporated equipment is iille flash, by be flashed. in ther lamps can means of suitable t1 battery cases as in sy11chroinvention will eription.

unitary contact a em ly, to provide a simple no l. A ejecting one, to provide a b tery having a quickly removable versiole reflector cssemrl to provide a battery case assembly that can be attached to either or a camera, and to provide a battery assembly that can be used for the operation of any of the several different types, methods or manners of flesh synchronization without the of any additional equipment.

Referring more particularly to the drawings, wherein the different methods or manners of operation are shown, and. referring first to Fig. 1, there is shown at as a battery to wh' b, is fitted a reflector support member 2! a bracket 22 that is attached to the ref ctor support member 2: by means of scr-ws 2.,--2" To the bracket a reflector 2 is attached by of a bracket and a clamp screw which lat ter is riveted to the reflector brocliet condition is test shown in wherein the brcolret 22 is provided with an clongated slot Ell through which the clamp screw 25.

inreaded onto screw 25 is clamp nut 27, which is prevented from being turned entirely off the screw 25 by means or a stop ring 25. The reflector support member 2! is held to the battery case 26 by means of a clamp screw as. To the lower end the battery 2b fitted a to for retaining the batteries in the battery case Zll. Also attached to he tery case is a switch blccl: best shown 11 '1, and carrying the switch operating member or contact button and a selector switch operating member The switch block a)! attached to the battery case is by teams of suitable screws or other suitable fastenings iiiill, hereinafter more particularly referred to,

Referring to Fig. the reflector support memher 2! is there shown. as removed. from the battery case and as viewed from the bottom, of the reflector. The construction of the refic support member ii is most celerly shown in Therein the screw as shown provr with a cone-shaped end that engs s1 able opening in the battery case 28, also shown in Fig. 8. A recess 3'! is provided in the reflector support member 52! opposite the screw 29, end best shown in 3. Through a suitable hole in the reflector support member M is fitter] a push button having a collar 33 on extend" ing finger or cylindrical formation it. The said push button is caused to moved in an out"- ward direction by means of a spring 4: attached to the reflector support member M by means of a screw 12 and a nut Q3. The flash-bulb ejecting purpose of the push button 33 will he explained more fully presently.

Reference will next be made to Fig. 5, wherein is shown an exploded view of the battery 20, which has been represented as broken away to foreshorten the length thereof for illustrating purposes.

The contact assembly block, indicated genorally at 44, is made up of two separate blocks. the upper contact block 45 and the lower contact block 56. The said contact assembly block M fitted into the battery case 2b and is held therein by means of screws All, 58 passing through holes ilo, 48a. The screw 1 is threaded. into a block ie that is fitted into a suitable opening provided therefor in the said upper contact block 55, indi cated at Ell. When the block 421 is in position in the upper contact block 55, a spring Contact member 5! is positioned against the upper contact block 45, and the extending finger thereof fits into provided therefor through The screw 48 will throw a hole battery case 325i, and will th. i

lar block or nut, indicated at lamp guide block, or rejector ring that 5S and into a suitable block or ring 5 1. The 55 is provided with a spring move the said ring to the ieit, when the spring 57 is piece in therefor, indicator When the sliding eector 5? are in place, the l is fitted into the of the cstte; is held thereto by oi so passing through a hole {59a in t and threaded into a hole i l in the le 1p block or ring This cons uction will ferred to more fully press The selector switch o erating member is provided with a contact member iii that fits over a squared it of the said nit fiber Z contact member is pro ed with :7 formation E3 that fits into a suitable groove of said member which is also provided v .th a slotted end indicated at for turning said said contact member iii, and indicated at 88, 8, 1 opening 6? of uppe switch operat ig room block indicat d r" The said selector operoti is provided with a cylindrical i 7 tion iii and a suitable forms in the said switch block tension of the selector switch ber passes through hole block The switch 913131.; ton is provide], with I able opening is provider block 3!, being indicated 11:. s "it An extension of the switch oper i or contact button it passes throu" is in the switch 3?? or contact and a sum switcl'i her 33 is in proper poi and the switch operating member or contact but ton 32 is also in proper position, the switch blocl; 35 is then fitted over the respective parts is held to the battery case $357 by means of screws Hi-l8 passing through soles 'W the switch block 3! and through holes is in battery case 2!} and threadedv into holes in the con tact block 45.

Reference will now be made to 9 to 1 In Fig. 9 is shown. the upper contact bloc as sembly 45 in perspective, having the s ,lector switch operating member tand with the contact member it! also place.

In Fig. 10 is shown the lower contact block assembly 45 in perspective, having the several contact members in place, and this will be more fully described presently.

Fig. 11 is a bottom view of the two upper and lower contact blocks as and assembled to... gether and clearly hows the position of the 865i oral contact members. ZChe said contact blocks and til are 1 eiii together by means of screws and iii through holes 83a and tic in the contact blocl: and through holes F b and till) in the contact block. and thr aded into nuts and respectively.

In 12 is shown the COl'ltitCJ block asscmbly in an exploded con ion. To the bottom of the lower contact block at is assembled a com tact plate having fingers and. The finger 35 forms the lower remote contact ll'l6ll1- her, the finger forms the lower .ttery contact member, and the ringer ill forms the lower shutter contact member. The screws and previously referred to, pass through the contact plate 84, and fitted over these screws is an insulating plate not shown in Fig. l2 but shown in Fig. 11.

to 11, over the insulating is placed a second contact member or pl having fingers and ll, of which. the orms the lower solenoid contact a'r the fin- 5! forms the lower extension contact. There is formed in the second contact member a hole through which a switch contact member passes when the unit is sled.

Also formed integral with sd second c ntact member 85 is upstanding rormation hat nstitutes means for grounding said "cond con- .ct member all to the battery case 2 of the nut 53, previously referred to.

contact members and Si! and the insulating plate til are assembled to the lower cont rou'o of con i provi ed therefor, indicated A slot its is also prov ded across the lower cono is fitted switci as ernbly (best shown in assembled condition in Figs. 1a and. 15) up of a switch contact plate member MS, a switch operating bar i533, a switch 1:: plate and a spring l The spring list of the svftch' assembly makes contact with the upstanalog member The switch assembly ti l is of well known construction of the snap action type, is not claimed herein per but it is here used in a novel relation involving a new combinaticn of parts.

Referring particularly to 12, there is fitted into openi reviously re erre. a c ntact member .aving an eaten in er iill that constitutes the upper solenoid contact, a downwardly extending arm that constitutes one contact member for the switch assembly upstanding ""e: er that constitutes a contact member for the circuit selecting switch.

Fitted into the grooveis a contact e ber having a arin ii; that com utes the upper remote contact a dowm tes the secswitcn c crating bar nember H3 that proor the circuit soles: sw tch. Into the slots or openings and is fitted a contact member 5 it having an arm llll that constitutes the upper shutter contact, a

area l :5 that constitutes the upper extension contact, and an upstanding member il l that forms a third. contact member of the circuit selector switch.

When the upper and. lower contact blocks 45 and lt are assembled, the contact member previously referred to, will lie in the opening 9i and forms the upper battery contact.

The contact members lei i I fl and ill form the three contacts of a circuit selector switch, and the contact member @I, previously referred to, of the selector switch operating member is so constructed that it can be rotated to contact with all of the selector switch contacts or any one of them can be disconnected from the circuit, because the said contact member (52 covers three sides only of the contact selector switch operating member 33, th uncovered face acting as an insulator. This is most clearly shown in the circuit diagram 23, 2t and 25, subsequently more specifically described herein.

To make contact with the flash lamp H6, shown in Fig. 16, we have provided the contact member previously r ferred to, that fits into a hole lit of the upper contact block #55. The lower end or" the hole Us is counterbored to receive the cylindrical flange or" the contact member so as to allow it to movement in an upward. direction. The said contact member is bored out to receive a coiled spring was, shown in dotted lines Fig. 12, and which fits over a pin lEi, also shown in dotted lines, that is in turn riveted to a hat member 22.

The assembly just referred to, consisting of the lamp contact member '59 and th at member n so made between the contact member lit and thescrew i213, thus completing a circuit to the lamp contact member The contact a embly block i t, consisting of the two contact blocks all and til, is then fitted into the battery case 2% in the manner previously described, as is also the lamp support block or ring 56.

An insulating liner i215, Fig. is fitted into the battery case Flash lamp batteries are then placed in the battery case 2% from the bottom in the usual manner and the positive contact of the battery will contact with a protri "ion 52% of the contact plate best shown in 1 s. 8 and 11. The cap is then screwed onto the bottom of the battery case and a coiled spring E2? will then contact with the negative side or" the batteries.

Thebattery case can be made of any length to accommodate any number of batteries. are generally series. When the battery case it is completely assembled, it will appear as in 1 and is. here will be five diilerent sets or contacts available for use and, for purposes of description, these contacts are labeled solenoid, remote, battery, shutter extension. The location of these several contact outlets is best illustrated in Figs. 17, 13 and 19.

Contact is made to the contacts contained in the contact assembly block :34 through openings l28-l2ii of the battery case and the construction is such that an ordinary household electrical plug: can be used for making contact.

In Fig. 16 there is shown the battery case 2% and a standard well-known type of between-thelens shutter, indicated at I22. A solenoid I30 is shown in position for operating the shutter electrically. The said solenoid I3!) is of well-known construction and preferably such as disclosed in the patent to Oscar Steiner, No. 2,293,477, August 18, 1942, and the shutter I29 can be any of the well-known shutters having built-in contacts for synchronizer flash lamps, such as shown in the patent to F. A. G. Pirwitz, No. 2,4 x,526, July 23, 1946.

For this type of operation, a cable I3I hav ing plugs I3 Ia and I32 are plugged into the out let marked solenoid in the battery case 2b, the plug I3Ia is connected to the solenoid I30, and a cable i315 having a plug I34 is attached to the contacts provided on the shutter I29. A plug of the same construction as shown at I32 is plugged into the shutter outlet of the battery case 25. For this type of operation, the circuit selector switch is in position as shown in the circuit diagram Fig. 24. This subject-matter will be re- :[erred to more fully when describing the circuit diagrams Figs. 23, 24 and 25.

In the use of photo flashlight equipment, it is desirable that more than one light be capable of being synchronised with the shutter of the camera. In accordance with our invention. means are provided for synchronized operation for a number of lights or flash bulbs.

In Figs. 20, 21 and 22 there is shown What will be referred to as a side lighting unit that consists of a short section of tubing, indicated at I35, to which is fitted the reflector support ring 2|, previously referred to, and that carries the redoctor and the flash-bulb ejecting button 38. previously briefly referred to. The tube B is also provided with the lamp guide block or ring 54 that carries the ejector ring 55 and the ejector ring spring 51, previously referred to.

A contact carrying assembly similar to the contact assembly block 44 in Fig. 5 is fitted into the tube and is held there by screws Iliailin. However, the structure of the contact assembly blockv 44 is here modified in that there is provision for only two sets of contacts and a contact 1.

for the flash lamp. These contacts are made up of the contact plate 89, previously referred to, fitted to the bottom of the lower contact block 46 and the contact members I05 and II4 fitted to the upper contact bloclr. 45. The lamp contact member I9 is fitted to the upper contact block 45 by the screw I23 in the manner previously described, and when the upper and lower contact blocks and 48 are assembled, contact will be made between the screw I23 and the contact member l I4. The said upper and lower contact blocks 45 and 46 are held together by the screws 80 and BI. The contact members I56 and II4 are connected together by a short circuiting metal member I36, best shown in the circuit diagram Fig. 26. The contact member 89 is grounded to the case I35 by means of the screw 48c and the nut 53 previously referred to. In the tube I35, there are provided openings IZfia, 128a for the insertion of the electrical plug.

In Fig. 26 is a circuit diagram of the side lighting unit as previously mentioned. The contact parts of this assembly are made up of some of those parts used in the battery case it, previously described. For clearness in describing these parts, shown in Fig. 26, we have used the same reference numerals but have added a suflix a. It will be noted that the contact member 89a is grounded to a tab 54s, that the contact members I No and Itfia having switch contact fingers I Ila and I09a respectively are connected together by a short circuiting member I36, that the contact member IIlQa is connected to the lamp connecting plug 19a, and that the lamp guide block or ring 54 is grounded to the case I35. Thus, the contacts a, 9Ia and the lamp guide block or ring 54 are all connected together, and the contacts IIIIc and II6a and the lamp 19c are also connected together.

Both the battery case and the extending or remote lamp holding unit are provided with novel lamp ejector means. The lamp guide block or ring 54 previously referred to, shown in Figs. 5 and 8, is provided with the sliding ejector ring 55 that is caused to be moved to the left viewing Fig. 5, by means of the spring 51. When the lamp guide block or ring 54 is assembled to the battery case 25, or the extension unit and the reflector support member are in place, the sliding ejector ring 55 will be displaced from a central location by the spring 51 and will then appear as shown in Fig. 21. If a lamp be placed in the lamp guide blocl: or ring 54, the contact member 19 will be depressed against the coiled spring I20 and the lamp H8 will be held in the lamp guide block or ring 54 because the threads on the base of said lamp II8 will be engaged by the sliding ejector ring 55. The lamp will be held securely in place until released by having the said sliding ejector ring 55 shifted to a central position by means of the lamp ejector push button 38, previously referred to.

As previously described with reference to 3, the lamp ejector push button 38 is provided with the extending finger or cylindrical formation 40 that passes through a hole in the battery case 20 provided therefor and engages the sliding ejector ring 55 at a point opposite the spring 51. Thus, pressure applied to the ejector push button 38 will depress the sliding ejector ring 55 in a right hand direction viewing Fig. 5, and the lamp I I8 will be ejected by the contact member I9 and its coiled spring I20.

There will now be described the circuit diagrams, shown in Figs. 23, 24 and 25, and there will be set forth the several difierent methods or means of operation of the apparatus of our invention.

The circuit diagrams, Figs. 23, 24 and 25, are similar excepting that the circuit selector switch operating member 33 is there shown in diiferent positions. In Fig. 23, the circuit selector switch operating member 33 is in the N position or normal position. In this condition, a pressure on the switch operating member or contact but ton 32 will complete a circuit from the positive battery through the switch member I52 and the switch member II2 to the contact IE3 through the switch shoe 6|, the selector switch contact I I1 and the lamp I I8, and then back to the bat tery and ground of the battery case 20 which the negative side of the battery.

The switch contact plate or member I02 will also complete a circuit through switch contact arm or member $08 and to the solenoid terminal. I Ill of the solenoid plug. If a circuit is completed from the solenoid plug to an electrical solenoid tripper device, current will flow through the solenoid and the solenoid finger 9d of the second contact member 89 to ground, completing a circuit through the solenoid I35.

When using the battery case 20 in connection with a so-called synchronized shutter (that is. a shutter having synchronizing contacts built therein such as is disclosed in the said patent to Pirwitz No. 2,404,526) the circuit selector eeeie'fi 10 her in the position siowh in Fig. 25 with respect attached to the camera,

batteryin a remote location i switch operating member 33 ion shown in Fig. 23.

sui' hle connectors are ctioh of "he batanri the cohout or the said leads is tion shown in Z4, eluggecl into the solehoi tery case it, and by the corri contacts on with a 1.1111 receptacle ch fits into shi stt H UDIS CDL) the cable lei, the solenoi the cable 3535 to the soleho ano. then to grou -d i hieh i he camera shutter 129 tacle marked Ex- S's that is attached of the battery, cor vitl this connection, when the solenoid. tut, but not @1110 metric r Contact button 32 cause of the positio erefng r 1? F the manner prelamp H8 located at the camera will be cells providing 41 /9 volts "at? h, the batteries Will one lamp at the moment to the s to the lamp 5 in the first eescrihecl m tension la ops can be operated .cthocls of operation just de- "y mere y conheeting the extenih 29 to the receptacle otion, e, circui" the solenoid i o cieley for operating for the delay in the 1 taken care of in th fully disclosed in time r --viously referred to.

the a suitable of conductors having representation shown in h the sect: o c

r r l" it ervesehly to oper has nothing to clo ti of -e lamp M53, as the iripletecl by the sl' tt tee. from focal plane :ers such as disclosed in the on l lo. 2,406,691, August of the pair of conductors having a, suit le connector is plugged into the receptacle proi therefor on the synchronizer and the Opposite end thereof is 1 to the on the battery case -"shutter? The circuit selector switch er of the battery case Will be in the position. iow n Fig, 23.

We have her in o. sclosecl a new flashing unit that rovie'ies the utmost flexibility in believe We the first to pro"- 2 a device hm swi ch control means her of difierent o eratioh of asso- The assembly is 45 27, One

and then the operation can ce if heth circuit selector sw 31ers are 13.1 the it p -11 tie when either switch ope 11 member or cotetact button. on. either battery 0 is ocerete course, the secohcl described I her of 01651155161. can he used, em; tery cases hav g their nectezl by sui e pl The circuit selector swltc will he in t e po; shutter l 14 M case through the sh it e3 etion can take place 1 1 M 69 i v t N memoer or contact hot one illustrative embodifollows. 4

1, s to he understood '"iptive sense and at on, the scope of the the following claims.

in the second in combinetioh,

battery case to 11123 a normal voltage at a battery h real oohne 10115 fbr the lamp in the hettey case that is attached to 'ery positioned-s. c th re n and hag a the camera, While maintaining normal voltage rahty of electrical outlet terz lihals whereby 01391; on the opera" gsolenoid. T. s reec. 1:; done by atihg' connection way b made to any one of a setting the circuit selector SVzhfih. operating mem- 75 plurality of es of associated photographic ex posure equipment, and also having an operating switch, a plurality of contacts, one of which is connected to one side of the operating switch and also to an outlet terminal for one type of photographic exposure equipment, another of "m "h is connected to an outlet terminal for another type of photographic exposure equipment, and a third of which is connected to an outlet terminal for a third type of photographic equipment, current conductors extending between and connect-- ing each of said types of photographic equipment and the said contacts, a current conductor con-- necting the contact with side of the battery and a selector switch, said selector switch being manually movable to connect ctively any two of said plurality of contacts, said operating switch being manually movab e to establish electrical operating tonne-1 through its terminals between the contacts 'whi are connected by the selector switch and the other side of the battery.

2. A battery case for a flashing unit assembly for photographic exposure equipment of tubelike construction, the lower end of which battery case receives the battery or batteries, said battery case having in its wall a plurality of different outlets for connecting to a corresponding number of different associated photographic equipments, a contact assembly block of substantially the same circumferential contour as said battery case and mounted therein above the bat-- tery or batteries, and means engaging the wall of said battery case for removably securing said contact block assembly in its position in said ba tery case, said contact block assembly having a plurality of electrical outlet terminals, whereby operating connections may be made through a corresponding outlet in the wall of the battery case, to any one, respectively, of an equal number of difierent associated photographic exposure equipments, a selector switch, a switch operating memer, both upon the outer wall of the bat tery case and closely adjacent to said contact assembly block, said selector switch operating member being manually movable into one of a plurality of positions to establish in each different position electrical operating connection to a different one of such associated photographic equipments, there being current conductors EX- tending between and electrically connecting, when the switch-operating member is duly operated, the respective ones of said different asso ciated photographic equipments and the respec tive electrical outlets therefor, and constituting selective circuit connections by which when the selector switch operating member is moved to establish a desired electrical circuit and the switch operating member is operated, the selected one of the associated photographic exposure equipments is operated.

3. A flashing unit for photographic exposure equipment comprising a tubular battery case adapted to hold a battery, an operating switch, electrical wiring connecting said switch to one side of the battery, a pair of terminals positioned to be connected to said battery when said switch is closed, at least three terminal contacts, a mor able selector switch which is adjustably shiftablc to connect different pairs of said three terminal contacts together, two of said terminal contacts being connected, respectively, to the two terminals of said operating switch, the third of terminal contacts and each of the other two terminal contacts being each connected, re pectively, to one terminal of a diiferent pair of electrical outlet terminals, and a plurality of electrically actuated photographic devices and current conductors extending between said photographic devices respectively and the respective electrical outlet terminals connecting the other terminal of each of said pairs of electrical outlet terminals with the battery on the opposite side of the battery from that to which the mating electrical outlet terminal is connected upon closing of said operating switch, each of said pairs of outlet terminals being constructed to be connected with one of said electrically-actuated photographic devices.

4. A battery case for a flashing unit assembly for photographic exposure equipment, in accordance with claim 3, wherein the selector switch operating member is rectangular in cross section at a part thereof, and there having four faces, said selector switch operating member being rotatably mounted in the wall of the battery case, so that, when turned, different conducting faces of the selector switch make contact with different terminals of said circuit wiring, and wherein said circuit wiring has three terminal contact members positioned for contact selectively with the four faces of said selector switch operating member.

5. A flashing unit for photographic exposure equipment in accordance with claim 3, wherein one of the terminal contacts is connected to two terminals of two different pairs of electrical outlet terminals.

6. A flashing unit for photographic exposure equipment in accordance with claim 3, wherein the said selector switch is multi-sided and is rotatable, and has a plurality of conducting contact faces and an insulating face, the said conducting contact faces being therefore adapted in different positions of rotation of the said switch to maize electrical connection between difierent pairs of terminal contacts.

7. A flashing unit for photographic exposure equipment in accordance with claim 3, wherein one of the pair of outlet terminals to which said one terminal contact is connected, is a springpressed contact mounted co-axially on the battery case at one end thereof, and is co-axial with a flash lamp receiving socket in said end of the said battery case.

8. A flash unit assembly for photographic exposure equipment comprising a battery case adapted to contain an electric battery, a normally-open double contact switch mounted in said case and connected electrically to one side of said battery, a pair of contacts cooperating with said switch to be engaged on closing of said switch, a movable selector switch also mounted in said case, a set of at least three contacts associated with said selector switch, said movable selector switch in different positions thereof connecting together electrically different pairs of the contacts that are associated therewith, a plurality of electrical outlets in said case, each having a pair of terminals, electrical current conductors connecting one terminal each of two of said outlets with one another and with one of the contacts associated with said selector switch, electric current conductors connecting a second contact of the set of contacts associated with said selector switch with one terminal of a third outlet and with one of the first-named pair of contacts, electric current conductors connecting a third contact of the set of contacts associated with said selector switch with one terminal of a fourth outlet and with the other of the firstnamed pair of contacts, electric current conductors connecting the other terminals of the two 13 i4 list-named outlets with opposite sides, respecposure .t, and operating s it h i battery, elec ric current connianue cal and the selected type of p110" doctors connecting the 0 er terminals of 1 cent has the required oon11ecthird or fourth outlets also with. opposite sides, ary cage .1 1 selected equipment ectivoi 1 be actuated.

- for photographic o ry case i e1ect1-c battery in its lower .nnci. contact therewith, a

mounted. above saicl batectci switch mounted in said. secure-cl to said tt.. th, 3 springicl block ct tor for con- :sh synclii a "o mounted s i n in, ent, norms i in said block,

interconts two switches and the ch being movable to oliiscoiinection d conductors with so case adapted lcotoc icto lower end ,tch v 1 0 to 7 mounted in said. block, la 0 se d to said case h, a. spring-aci mounted in said block other electrical Contact for oer having springin. ection substantially rotation of said in said case for electrically-operwent, a nor untecl saidv ors in said case in ie two switches and hitter, and; a flash lamp, .1

for connecting said J'tei' outlet elect amp 2g outle corop v ing a movable selector 5W ountecl said. use, a nor1nally-open op switch mounted in said case, and. elect co ductors co -t:.1 t With o e1 con ct-on a 21 or elc V. :nbly tter lamp or a Case ltli their respective outlets, movable y in its lower end electrical outlets for nt electrically-op merit, a com above said battery, i i32 being recessed at a ints, a corresponding numreceived in said recesses,

levice F 1 Q 60 mg GUI" U mounted in said con- OI vable into a plurality 2 of each of which a differ sii s cc ed for operation "trical conductswitch movably mounted in case for closing an electrical circuit from said battery through said contact arllis the pair of outlets selected for operation by said selector switch.

15. flashing unit assembly for photographic exposure equip nent comprising, in combination, 75 a battery case having electrical connections for a battery positionable therein and having a pin rality of electrical outlet terminals whereby op erating connection may be made to anyone of a plurality of types of photographic exposure equipment, and also having a movable selector switch, three terminals cooperating with said selector switch, an operating switch connected to one side of the battery, and also to an outlet terminal for a shutter with synchronizing contacts, a pair of contacts cooperating with the operating switch, one of said contacts being connected to an outlet terminal for a remote control and also to a terminal of the selector switch, said outlet for the remote control being also connected to the same side of the battery as said operating switch, the other of said. contacts being connected to an electro-magnetic shutter operating mechanism outlet and also to another terminal of said selector switch, and the third of said terminals being connected to an outlet for a flash lamp and to the outlet terminal for the shutter with synchronizing contacts, said outlets for the electro-mag'netic shutter operating mechanism and for the flash lamp being also connected to the other side of the battery, said selector switch being manually operable to connect selectively any two of its terminals, and said operating switch being manually operable to establish the electrical operating connections through its contacts between the terminals which are connected by the selector switch, the terminal which is connected to the electro-rnagnetic shutter operating mechanism being so situated with reference to the terminal for the shutter with synchronizing contacts, that both terminals cannot be engaged simultaneously by the selector switch.

IRVING JACOBSON.

CLINTON F. BBUNDAGE, MILFORD B. MOORE.

References Cited in the file of this patent UNITED STATES PATEII'I'S Number Name Date 1,920,963 Carpenter Aug. 8, 1933 2,268,330 Boesser Dec. 30, 1941 2,302,031 Jacobson Nov. 17, 1942 2,329,011 Steiner 1- Sept. 7, 194-3 2,350,253 Steiner May 30, 19% 2,371 i79 Steiner Mar. 13, 1945 2,437,373 Bernstein 9, 19-18 2,467,591 Lidfeldt Apr. 19, 1949 2,496,680 Schwartz Feb. 7, 1950 FOREIGN PATENTS Number Country Date 778,757 France Jan. 2, 1935 

